Jugbow Dog Shock Collar 2 Dogs (10-120Lbs) - 4200FT Dog Training Collar with Remote Control, IPX8 Waterproof Rechargeable E Collars for Large Medium Small Dog4 Humanized Modes, Eliminate Bad Behavior EffectivelyOur dog shock collar features 4 humane training modes: beep(standard), vibration(1 9 levels), safe shock(0 99 levels) and Shock Boost(10% higher). Enable you to set the right stimulation levels for your pet, which helps deter dogs from undesirable habits! Extended 4200FT Range & 2 ChannelWith 4200FT impressive range, you can now have complete freedom while training your dog at the park, beach or in